Class 9 Rwp Board

My age in thirteen years. Its value in seconds is 13 years = 13 x 365 x 24 x 60 = Seconds.

Base Quantities Derived Quantities Base quantities are the quantities on the basis of which all other quantit...

Chapter 1: Physical Quantities and Measurements Q/A From The Text Book (PTBB) Q1:  What is the difference between base quantities a...

Chapter 1: The Saviour Of Mankind Paragraph No.1: Arabia is a land of unparalleled charm and beauty, with its trackless deserts of sa...

Introduction to Physics Physics: “ The most fundamental division of physical sciences which deals which the study of energy, matter and t...

Present Simple Tense It is used to express an action in present time, habitual or usual actions or daily event or universal fact. It is...

Chapter 1: Physical Quantities and Measurements Introduction To Science “ The knowledge gained through the observations and experimen...

Story :                                Shaikh Chilli Sheikh chilli was one day carrying a basket full of eggs to sell in the market. On...

All the accurately known digits and the first doubtful digit in an expression are called significant figures. Significant figures reflect th...

Least Count Of Vernier Calipers is called Vernier Constant.